From 589258241a41549816728308ea3cfcd600747cba Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Thu, 12 Sep 2024 13:36:35 +0200 Subject: [PATCH] doc/releases: add rbd-wnbd scalability note Signed-off-by: Ilya Dryomov --- doc/releases/squid.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/doc/releases/squid.rst b/doc/releases/squid.rst index a340bbdaff99c..d124d96169026 100644 --- a/doc/releases/squid.rst +++ b/doc/releases/squid.rst @@ -225,6 +225,12 @@ RBD * RBD: `RBD_IMAGE_OPTION_FLATTEN` option has been exposed in Python bindings via `flatten` optional parameter to `deep_copy` and `migration_prepare` methods. +* RBD: `rbd-wnbd` driver has gained the ability to multiplex image mappings. + Previously, each image mapping spawned its own `rbd-wnbd` daemon, which lead + to an excessive amount of TCP sessions and other resources being consumed, + eventually exceeding Windows limits. With this change, a single `rbd-wnbd` + daemon is spawned per host and most OS resources are shared between image + mappings. Additionally, `ceph-rbd` service starts much faster. RGW ~~~ -- 2.39.5